Governor.



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JAMES NELSON RUNDLE, OF SANTA BARBARA, CALIFORNIA.

GOVERNOR.

sPEcIiaIoATIoN forming part of Letters patent ivo. 646,505, dated Aprils, 1960.y Appiieaion filed october 27,1898. serai No. 694,673. oro man.)

To all whom it' may concern:

Be it known that I, JAMES NELSON RUNDLE, a citizen of the United States,residing at Santa Barbara, in the county of Santa Barbara and State of4California, have invented certain new and useful Improvements inGovernors for Steam-Engines, of which the following is a specification.

My invention relates, primarily, to governors for pumps or other classesof machinery of a reciprocating nature where there is nothing rotaryfrom which to conduct a governorbelt; and it consists, in general terms,in combining with the governor-valve and its spindle and with thegovernor-arms a rotatable worm or spiral arranged in the steam-pipe toreceive the force of the steam on its way to the engine or machine,whereby said arms are revolved and caused to control the valve.

It further consists in the various other combinations and details ofconstruct-ion hereinafter described and claimed.

Inthe drawings which form a part of this application, Figure lis avertical sectional View through a governor and accessory mechanismembodying my invention. Fig. 2 is a detail of a safety-valve.

A represents a steam-pipe leading from any boiler, and A a coupling uponsaid pipe. A2 shows a pipe leading from another boiler. Into one side ofthis coupling takes a casingtube B at right angles to the pipe, Whiletothe opposite side, in line with the tube, is fitted a stuffing-,boxB', in which revolves the tubular shaft O, carrying the Worm or spiralO', that traverses the casing-tube and receives the force of the steamrushing therethrough and is turned thereby at a speed depending upon thesteam-pressure. To the lower end of the tube is secured asection-coupling D, connecting it with the valve-box D' and carrying abridge CZ, in which the lower end of the tubular shaft is stepped and towhich is secured the valveseat D2, having port d therethrough.

E is the governor-valve, flaring at e to engage the valve-seat, tubularat e to lit and play in the eduction-passage E', connecting with thepipe E2, which leads to the pump or other engine, and flanged at e2 torest upon a coiled spring E3, which tends to close it against its seatand thereby cut off the iiow of steam.

A valve-rod F passes through the tubular shaft C and valve-seat D2 andat its lower end is forked at f to engage a pin f', whereby it issecured to the valve that it may lift the latter against its seat whenraised by the governor and throw it down against the force of `thecoiled spring when depressed.

To the tubular shaft above the stuffing-box is secured a sleeve orcollar G, hereinafter termed a steady-rest, and above this steadyrest isa second stuffing-box G, screwed upon the end of the shaft. From the topof the steady-rest project upstanding arms g, which receive set-screwsglfor a purpose directly to be explained. Upon the screw-threaded upperend of the v alve-rod is supported a sleeve G', held in adjustedposition by jam-nut g2, and this sleeve carries a loose collar or yokeH, having ears 72 receiving pivot-pins h from the lower ends of governorarms or links H', which at their upper or outer ends are pivotallysecured to lugs h2 from the balls or weights H2, these latter beingpreferably formed as hemispheres having slots h3 in their contiguousfaces for the reception of the links and pressed together beneath thepivotal connection with the links by plate-springs H3, to which they areattached, the tension of which is controlled and adjusted by theabove-mentioned set-screws g' and by auxiliary or supplemental springsh4 of shorter length, upon which/the set-screws act. These supplementalsprings may, however, be omitted. The springs H3 will be adj usted tohave a slightlygreater tension than the coiled sp1ingE3,which actsdirectly upon the valve, so that upon any decrease in the speed ofrevolution they may overcome the latter and close the hemispheres,depressing the valve-spindle and moving the valve away from its seat,while with an increase in speed the coil-spring will immediately aid thecentrifugal force in closing the valve, thus giving a very sensitiveaction.

It is sometimes desirable to entirely shut off steam from the engine assoon as the force inducing the action of the governor becomes so feebleas to enable the springs H3 to entirely close the hemispheres and throwthe valve entirely open. To this end a seat K is formed upon the lowerend of the valve to close against an opposing seat k when said IOO zorevolves with said tubular shaft.

valve is fully open and its sustaining-spring compressed. This secondseat may be upon the upper truncate end of a movable valve K',adjustable in position by lever L and cam Zand secured in adjustedposition by locking the lever into any one of a series of perforationsalong the segment L' or otherwise. An exhaust-pipe L2 leads from thevalve-box to carry off waste or dead steam.

Vhere the engine drives rotary parts, the spiral or Archimedean screwmay be omitted and the tubularshaft driven by other meansas, forinstance, by a belt traveling over a pulley M, having its shaft mountedin a bracket M', secured to a ixed support, such as a flange, upon thecoupling A and carryinga bevel-gear N, meshing into a bevel-pinion N',keyed to the sleeve G or steady-rest, which, as already stated, issecured to and With this construction the governor-valve will beoperated in the same Way as before, and should the belt run off thepulley or break steam may be instantly shut off from the engine by theclosing of said governor-valve against the lower or safety cut-offvalve.

I claim- 1. The combination of the tubular rotary shaft, means sensitiveto the iiow of steam for driving it, the governor-valve and its seat,the valve-spindle passing through the shaft, the steady-rest, the linksconnected with the upper end of the valve-spindle and with thegovernorweights, the said governor balls or weights attached tothe upperend of the springs, and said springs carried by the steady-rest, andacting against the weights to close them, as described.

2. The combination of the tubular rotary shaft, means sensitive to theflow of steam for driving it, the governor-valve and its seat, the lowervalve-seat against which the governor-valve closes to cut off the-steamnfrom the engine, the valve-spindle connected to the governor-valve andpassing through the tubular shaft, the steady-rest, the links connectedwith the upper end of the valvespindle, and with the governor-weights,the said governor-weights attached to the said springs carried by thesteady-rest, and acting against the weights to close them, as described.

3. The combination of the tubular rotary shaft, means sensitive to theflow of steam for driving it, the governor-valve and its seat, thevalve-spindle passing through the shaft, the steady-rest, the linksconnected with the upper end of the valve-spindle and with thegovernor-weights, the said governorweights attached to the upper end ofsprings, the said springs carried by the steady-rest and acting againstthe weights to close them, and the spring of less tension acting uponthe governor-valve to lift the latter' toward its seat, as described.

4. The combination of the tubular rotary shaft, the worm or spiralthereon, the tubular casing in which it works, the steam-pipe, thegovernor-valve and its seat, the valvespindle playing through thetubular shaft, the steady-rest, the links connected with the valve-rod,the governor-Weights connected with said links and to springs, and thesaid springs carried by the steady-rest, and actingl against the weightsto close them, as set forth.

5. The combination of the tubular rotary shaft, the worm or spiralthereon, the tubular casing in .which it works, the steam-pipe, thestuffing-box opposite the casing,the steadyrest secured to the tubularshaft to revolve therewith above the stuffing-box, the governor-valveand its seat, the valve-rod playing through the tubular shaft, the linksconnected with the valve-rod above the steady-rest, the governor-weightsconnected with the upper ends of said links, the springs connected withand acting upon the Weights to close them, and the spring acting uponthe valve to aid in lifting it, substantially as set forth.

6. In a governor, the combination with a tubular rotary shaft, of thevalve-rod playing therethrough, the valve-seat and valve, the governorarms or links connected to the valve-rod at its upper end theheniispherical weights connected to the upper ends of said levers andrecessed to receive them, and the springs secured to and pressingagainst said weights, as set forth.

7. The combination with the governor arms or links the weights securedto the upper ends of said links, the valve-rod, the steady-rest, thesprings carried thereby and pressing against the weights, and means foradjusting the tension of the springs, as described.

8. The combination with the valve-rod, the governor arms or links, theweights secured to the upper ends of said links, the steadyrest, itsupstanding arms, the springs carried by the steady-rest and pressingagainst the weights, and the set-screws for adjusting the tension of thesprings, as set forth.

The combination with the valve-rod, the governor arms or links, theweights secured to the upper ends of said links the steady-rest providedwith upstanding arms, the platesprings carried by the steady-rest andpressing against the weights, the auxiliary springs IOO IXO

pressing against the plate-springs, and the

